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On September 17, 1787, the final draft of the Constitution was signed by 39 delegates. The document was then sent to the states for ratification, and went into effect on June 21, 1788 when New Hampshire became the ninth state to ratify the Constitution.
In celebration of Constitution Day, the Library of Congress has compiled a variety of materials from across its collections. Explore these rich resources and features to learn more about one of America's most important documents.
Search these collections using the words "Constitution," "Constitutional Convention," "Continental Congress" "Bill of Rights," or "Constitutional Amendments" to find related documents.